Why does my f 250 dies when I'm not driving and I noticed oil gauge goes down.

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Sounds like your F-250 is playing a game of "Red Light, Green Light," but with a twist. If your oil gauge is dropping when you're idling, it could be a sign of low oil pressure. This might be due to a faulty oil pressure sensor or a worn-out oil pump. Since you mentioned it happens more when parked uphill, it might be affecting oil flow. The fact that it starts up again, albeit reluctantly, suggests the issue might be intermittent. Another possibility is a problem with the idle air control valve, which can cause stalling at idle. It's like your truck's version of stage fright—works fine when moving, but stalls when the spotlight's on. I'd recommend getting it checked out before it decides to take a permanent nap at a stop sign. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554.